Of course, Picard could be the Dr. Belloq sort of amateur archaeologist, rather than the Dr. Jones sort - if he can't have this Promellian treasure chest, then nobody else can, either! He'll just rationalize his childish pride by claiming that removing the ship will be the best way to remove others' unhealthy interest in it.

Picard is known for destroying ancient artifacts left and right, just because. Tox Uthat is gone (for the time being)...